Factual error: At the car auction the Jaguar that the UCOS team are buying is described by the auctioneer as a 1967 model, but it is a C reg, which dates it to 1965.
Season Final - S1-E6
Factual error: Mobile phone signals cannot pass through steel very well if at all, so the recording of the mobile phone conversation given to the head of UCOS should be breaking up in places, or the call should have been cut off when the door was closed - it shouldn't be crystal clear.
Factual error: The Naval officer Commander Clothier has his rank badge on his shoulder upside down.
Factual error: In the flashback scene to Peggy's wedding in 1956, the wedding car, a Ford Consul, is a 1959 model, and the car behind it is a standard Goldstar which started production in 1957.
Factual error: Brian looks up the registration number of the car seen driving away from the arson attack at the clinic on the police computer and says it is registered to a 1998 Chrysler Sunbeam. These cars were only made between 1976 and 1979.
